> This hasn't happened, as far as we know - largely indicated by the fact no one's been detonating nuclear weapons they have. It almost happened, multiple time

> This hasn't happened, as far as we know - largely indicated by the fact no one's been detonating nuclear weapons they have. It almost happened, multiple times, due to mistakes. [1] https://en.wikipedia.org/wiki/List_of_nuclear_close_calls https://en.wikipedia.org/wiki/List_of_nuclear_close_calls